D6T Track-Type Tractor Electronic Control Systems Caterpillar

Event Code List

Usage:

Events alert the operator or the technician that an abnormal operating condition exists in a machine system.

The operator is alerted by an error message when an Event is activated. All the active Events are logged by the ECM. The active Events and the logged Events can be viewed with the Monitoring System or the Caterpillar Electronic Technician (Cat ET).

Warning Levels

The ECM assigns one of three warning levels to an active Event code according to the severity of the condition. Each warning level requires a specific response from the operator. The warning levels and required operator response are listed below.

Warning Level 1

Warning level 1 alerts the operator that a machine system requires attention. The operator should check the involved system condition or perform maintenance on the involved system at the earliest possible time.

Warning Level 2

Warning level 2 requires changing the operation of the machine or performing a maintenance procedure. Failure to correct the problem may result in damaging the involved machine system components.

Warning Level 3

Warning level 3 requires an immediate safe shutdown of the machine. The problem that caused the Event will have to be corrected before machine operation can resume.

Indications and System Response

Instrument Cluster

The warning indicators on the instrument cluster will illuminate when an EID is activated for a particular system. If two warnings of a different level are active at the same time, the highest level warning will be displayed.

Refer to Table 1 for the response of the instrument cluster to the associated warning level.

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Table 1
WARNING OPERATION
Warning Level	Warning Indications		Required Operator Action	Possible Result ⁽¹⁾
Warning Level	Red Action Indicator	Action Alarm Sounds	Required Operator Action	Possible Result ⁽¹⁾
1	OFF	OFF	No immediate action required. The digital display should communicate any response required.	No harmful or damaging effects.
2	Flash ON and OFF	OFF	Change machine operation or perform maintenance to the system.	Damage to system components.
3	Flash ON and OFF	Pulse ON and OFF	Immediately perform a safe engine shutdown.	Operator injury or severe damage to components.

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⁽¹⁾	The result if no operator action is taken.

Caterpillar Electronic Technician (Cat ET)

When an abnormal system operating condition occurs, the status screen in Cat ET will indicate that there is an active Event.

Event codes are displayed in Cat ET in the following format:

EXXXX Description of the code

The "E" indicates that the code is an Event code. The "XXXX" is a numeric identifier. The numeric identifier is followed by a description of the code.

The active Event codes are listed in an ascending numerical order. The code with the lowest number is listed first. The active Event code is removed from the list when the condition is no longer present. You can view the logged Events and the active Events in Cat ET.

The logged Event codes are listed in chronological order. The most recent code is listed first.

A logged code is cleared from memory when one of the following conditions occur:

The service technician manually clears the code.
The code does not reoccur for 1000 hours.
A new code is logged and ten codes have already been logged in memory. In this case, the oldest logged code is cleared.

Note: Always clear the logged Event codes after investigating and correcting the problem which generated the code.

General Troubleshooting Guidelines

Perform the following steps to troubleshoot an Event:

Obtain the following information from the operator:
- The Event and the time of the Event
- Determine the machine operating conditions at the time of the Event. Conditions such as engine rpm, machine load, or operating environment may be important.
- Determine if there are any systems that were installed by the dealer or by the customer that could cause the Event.
Verify that the Event is not due to normal machine operation. Verify that the Event is not due to an error in the operation of the machine.
Attempt to reset the active Event to determine if the cause was due to a momentary condition.
Check all fluid levels and all oil levels.
Many active Events can be caused by or are related to active diagnostic codes. Always check for active diagnostic codes that are related to the condition of the Event. Troubleshoot and repair the cause of any diagnostic codes that are active when an Event is activated.
Locate the EID code for the active Event that is listed in the following tables and follow the recommended actions. The specific cause of a particular Event cannot always be predicted. Use the recommended actions as a guide and investigate any other conditions or circumstances that may indicate the cause of a specific active Event.

Events for the Implement ECM

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Table 2
EID	Level	Probable Cause	Recommended Action
0861 Clock Manual Adjustment Required	1	The ECM internal clock is too far out of alignment with the other control module clocks on the machine.	Use Cat ET to align the clock with the other control modules manually.
0878 High Hydraulic Oil Temperature	2	The oil temperature has risen to 95° C (203° F) or above. The load on the machine is too high.	Modify machine operation to reduce the system load. Check the oil level. The Event will reset at 93° C (199° F)
0878 High Hydraulic Oil Temperature	3	The oil temperature has risen to 100° C (212° F) or above. The load on the machine is too high.	Immediate safe shutdown required. Modify machine operation to reduce the system load. Check the oil level. The Event will reset at 98° C (208° F)
0889 Winch Disabled	1	Accumulator is not charging properly. The Accumulator Pressure Switch has failed. Open circuit or grounded diagnostic on either the Winch Main Pressure(System Flow) solenoid or the Winch Supply Boost Accumulator(Accumulator) solenoid.	Check winch hydraulic system pressures. Troubleshoot any active diagnostic codes.
2115 Implements Locked	1	A diagnostic code is active for a component in the implement system. A blade control solenoid is shorted to the battery. A CID 0490 diagnostic code is active for the implement lockout switch. A CID 0168 diagnostic code is active for the system voltage.	Troubleshoot all the active diagnostic codes for the implement system and perform the necessary repairs.

Events for the Power Train ECM

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Table 3
EID	Level	Probable Cause	Recommended Action
0329 Power Train Filter Bypass Switch Closed	2	Power Train oil filter is clogged. For the event to trigger the power train fluid must be 52° C (125.6° F) or above with the engine running.	Replace the Power Train oil filter.
0155 High Torque Converter Oil Temperature	2	The fluid temperature is above 129° C (264° F).	See RENR9867-03. Activated at 129° C (264° F). De-activates at 121° C (250° F) Check Oil. Modify machine operation to reduce system load.
0155 High Torque Converter Oil Temperature	3	The fluid temperature is above 135° C (275° F)	Immediate safe shutdown required.
0179 Alternator Not Charging	2	The system voltage is below 24 VDC or above 30.5 VDC. The alternator r-terminal is not functioning while the engine is running.	Check Alternator for proper operation.
0192 Steering System Malfunction	3	Activated in one of the following situations: - The ECM is not receiving signals from the Steering Control Handle position sensor - One of the Steering Pump solenoids has an active diagnostic code. Limp Home Mode option will display when this Event is active.	Immediate safe shutdown required. Check for active CID 1471, 1472, 1473 codes for steering sensors (all 3 CIDs must be active to activate this Event). Check for active CID 0726 or CID 0727 codes for the right hand or left-hand steering pump solenoids. Refer to troubleshooting procedure for active diagnostic codes and clear the active diagnostic code.
0256 Steering in the Wrong Direction	3	The ECM detects the machine steering in the opposite direction of the steering command. Limp Home Mode option will display when this Event is active.	Immediate safe shutdown required. Usually occurs after service to steering system components as a result of component either wired in reverse or hydraulic lines connected in reverse. Check for and clear any active CID 1469 or CID 1470 diagnostic codes for the steering motor speed sensor input signal circuits. Check the following components for correct wire connections: LH and RH steer solenoids, the two steer speed sensor signal circuits. Check the following hydraulic components for correct connections and operation: Steering pump hydraulic connections, steering pump operation, COR valve operation.
0257 Steering Output Detected With No Command	3	A problem exists in the hydraulic system. The hydraulic fluid is too cool. The steering motor speed sensor is indicating steering motor movement to the ECM when the FNR direction handle is in the NEUTRAL position.	Immediate safe shutdown required. Limp Home Mode is activated when the Event is active. Warm the machine and the hydraulic fluid before operating the machine. Check for pump stroking without command. Check the pump solenoid valves for being stuck in closed position. Check for internal hydraulic leakage in the steer motor.
0258 No Steering Detected With Command Given	3	The steering motor speed sensor is not indicating steering motor movement to the ECM when steering is commanded.	Immediate safe shutdown required. Limp Home Mode is activated when the Event is active. Clear any active CID 1469 or CID 1470 diagnostic codes for the steering motor speed sensor input signal circuits. Check the mounting of the steering motor speed sensor. Check the hydraulic system for: pump solenoid valves for being stuck in closed position, internal hydraulic leakage in the steer motor, COR valve stuck open, steer pump failure.
0281 Steering Hydraulic Oil Filter Restricted	2	The steering hydraulic oil filter is plugged. For this event to trigger the hydraulic steering fluid must be 41° C (105.8° F) or above with the engine running.	Replace the steering hydraulic oil filter.
0594 High Transmission Lube Oil Temperature	2	Event is logged when the Transmission Oil Temperature is greater than 110° C (230° F). Transmission lube oil temperature is calculated by software using the following sensors Power train sump temperature Torque converter temperature Engine coolant temperature	Check the temperature of the listed systems. Modify the operating conditions to lower the temperature.
0875 Low System Voltage	2	The system is operating below 24 VDC. The alternator r-terminal is functioning while the engine is running.	Check Alternator for proper operation. Check the battery connections.
0875 Low System Voltage	3	The system is operating below 23 VDC.	Immediate safe shutdown required.
0876 High System Voltage	2	The system is operating above 30.5 VDC. The alternator r-terminal is functioning while the engine is running.	Check if the Alternator voltage output is high. Check the battery connections.
0876 High System Voltage	3	The system is operating above 32 VDC.	Immediate safe shutdown required.